Climate Insights for Whitehorse

The climate in Whitehorse is cold. The average annual temperature is -1°C and approximately 547mm of precipitation falls per year. July is the wettest month, receiving around 79mm of rainfall. Whitehorse is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -18°C. Whitehorse experiences heavy snowfall, typically from January through December.

Whitehorse has a wide annual temperature range, spanning 37°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 19°C with a mean of 14°C. January brings the harshest conditions, with lows dropping to -18°C and an average temperature of -16°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 9°C shift in average temperatures.

Whitehorse is a relatively dry area, receiving approximately 547mm of precipitation annually, which averages out to around 46mm per month. The wettest month is July, averaging 79mm of rainfall. August and June also tend to see above-average precipitation. The driest month is April, with just 19mm. That's 60mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Whitehorse receives heavy snowfall, accumulating around 240cm annually from January through December. The snowiest month is December, with approximately 52cm. Winter travel should account for significant snow cover.

Whitehorse is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is May, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in January, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently summer in Whitehorse, which began on June 21, 2026. Whitehorse is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 19°C, while the coldest stretch bottoms out in January near -18°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The table below shows monthly climate averages for Whitehorse based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.